142223454 has 12 divisors (see below), whose sum is σ = 308150856. Its totient is φ = 47407812.

The previous prime is 142223447. The next prime is 142223461. The reversal of 142223454 is 454322241.

142223454 is a `hidden beast` number, since 1 + 422 + 234 + 5 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (142223447) and next prime (142223461).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3950634 + ... + 3950669.

It is an arithmetic number, because the mean of its divisors is an integer number (25679238).

Almost surely, 2^142223454 is an apocalyptic number.

142223454 is an abundant number, since it is smaller than the sum of its proper divisors (165927402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142223454 is a wasteful number, since it uses less digits than its factorization.

142223454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7901311 (or 7901308 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 142223454 is about 11925.7475237404. The cubic root of 142223454 is about 521.9838591037.

Adding to 142223454 its reverse (454322241), we get a palindrome (596545695).

It can be divided in two parts, 1 and 42223454, that added together give a triangular number (42223455 = T₉₁₈₉).

The spelling of 142223454 in words is "one hundred forty-two million, two hundred twenty-three thousand, four hundred fifty-four".